C++ miscellaneous MCQ question and answer with solution | C++ Programimg MCQs

A. Size of a data type in bits

B. Size of a data type in bytes

C. Size of a variable in bytes

D. Size of a variable in bits

A. Char

B. Float

C. String

D. Double

A. To declare a variable with dynamic storage duration

B. To declare a constant

C. To declare a variable with external linkage

D. To declare a variable with static storage duration

A. None of the above

B. They both have the same effect

C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it

D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it

A. That the variable is a constant

B. That the variable has dynamic storage duration

C. That the variable has external linkage

D. That the value of the variable cannot be changed

A. To represent a null pointer

B. To represent a null reference

C. To represent a null character

D. To represent a null value

A. None of the above

B. 'delete' is used to deallocate memory allocated for an array of objects, while 'delete[]' is used to deallocate memory allocated for a single object

C. They both have the same effect

D. 'delete' is used to deallocate memory allocated for a single object, while 'delete[]' is used to deallocate memory allocated for an array of objects

A. To declare a variable as inline

B. To define a function as inline

C. To suggest the compiler to inline the function call

D. To declare a function as static

A. To indicate that a variable should be optimized by the compiler

B. To indicate that a variable may be modified by external factors

C. To indicate that a variable should not be optimized by the compiler

D. To indicate that a variable should be optimized by the compiler

A. Using the 'volatile' keyword

B. Using the 'static' keyword

C. Using the 'const' keyword

D. Using the 'constexpr' keyword